Device for oiling ball-bearings.



H; 'ANGEBRANDT, JR. DEVICE FOR OILING BALL BEARINGS. APPLIGATION FILED JAN.'13, 1913.

Patented June 9,1914.

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ED STATES nUBERT ANGEBRANDT, JIL, F TOLEDO, OHIO.

DEVICE FOR OILING BALL-BEARINGS.

Specification of Letters Patent.

Patented June 9, 1914;.

Application filed- January 13, 1913. Serial No. 741,809.

To all whom it may concern:

Be it known that I, HUBERT ANGEBRANDT,

Jr, a citizen of the United States, residing at Toledo, in the county of Lucas-and State of @hio, have invented certain new and useful Improvements in Devices. for Oiling Ball-Bearings; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to journal bearings, and more especially to those which are selflubricating; and the object of the same is to provide an upright journal hearing (more especially a ball bearing) with means for forcing the lubricant into the bearing proper through centrifugal action which of course increases with the increased speed of rotation. This object is carried out by con structing the lubricator in the manner hereinafter more fully described and claimed, and as shown in the drawings whereir Figure 1 is a central vertical section through this hearing complete, and Fig. 2 is a perspective detail of the spreader.

In, the illustration herewith, an upright shaft or journal 1 is shown as threaded as at 2 below a shoulder 3 and as having secured around it above said threads a collar 4 provided with an external groove 5 which forms an inner ball race; and the shaft is -loosely surrounded by a shell 6 having an internal shoulder 7 above which-is disposed a collar 8 provided with a groove 9 which forms an outer ball race, while steel balls 10 travel between these races. The form of ball bearing thus shown and described is merely typical of any appropriate type of bearing by means of which a shaft 1 may be journaled within a shell 6, and the purpose of the present invention is to supply lubricant tothe balls between said races. I prefer to close the upper end ofthe space between the races by means of a closure, herein shown as a ring 11 having spanner holes 12 by means of which .it can be turned, and threaded at its outer edge as at 13 to removably engage corresponding threads within the mouth or upper end of the shell 6 as shown. When this closure is in place it'holds the outer collar and ball race 8 upon the shoulder 7, but

' permits the inner collar and ball race 4 to rotate with the shaft 1, upon which it is secured in any suitable manner.

' Coming now more particularly to the deance of a truncated cone.

tails of the present invention, the interior of the shell 6 below its shoulder 7 is channeled out to produce an internal chamber 15- Which is disposed directly below the space between the two races and communicates with such space at and bottom walls of this chamber are formed by the shell 6, and the inner wall is by preference composed of a rather thin band 16 whose upper edge is spaced some distance below the ball bearing above described. Detachably engaged with the threads2 is the threaded bore of a sleeve 17 which surrounds the shaft 1 beneath its shoulder 3, and forms part of a spreader best seen in Fig. 2; and from the upper end of said sleeve the body of said spreader diverges and declines in all directions as at 18 so that this element has the external appearof the body by preference carries a skirt 19- which may have one or more external annular chamber 15 near the bottom thereof while the inclined body near its juncture with the upper end of the sleeve 17 passes over the upper edge of the band '16 and out of contact therewith. Said chamber 15 may be supplied with lubricant in any suitable manner, and in the drawings I have shown a fine duct 21 led through the wall of the shell and carrying a cup 22 at its upper end. Obviously. when the lubricant is poured into said cup-it travels down the duct and fills the chamber 15 on both the inside and out-' side of said skirt 19, but I do not wish to be confined to this precise means for filling the chamber.

The action of this device is as follows: Assuming that the shell is fixed and the shaft 1 rotates, the latter carries the spreader with it and its skirt 'travels' around within the annular chamber 15 and dips into the oil therein. Very soon the oil will partake'of the rotary movement of the spreader and will itself travel around within the chamber, and the centrifugal force up the outer wall of the chamber until eventually it is driven upward into the space between the two ball races and directly onto the balls 10 in a manner which will the rate of speed at which the shaft 1 is rotated the greater the centrifugal force set up and therefore the greater the .volume of The lower edge its upper end. The outer grooves 20, and this skirt hangs within the thereby imparted to it will cause it to ride be clear. It is quite obvious that the higher oil applied to the hearing, and. it will also be quite obvious that the details of construction of said hearing are not ossenlial to the successful opcralion of this device. When the hai'l; or journal. 1 again comes to rest, the oil settles down to a level. as seen in F. 1 of the drawings, and if it has been depleted it mav be replaced by more lubricant applied through the cup 2-2 and duct 21' or in any other suitable manner.

1 do not wish to he confined to the strict details of conslruction hcreinbe'fore described, nor to the materials and proportions of parts.

What is claimcd as new is:

- In a lubricalor, the con'lhination with an '11 right haf havin three successivel ooaovo the shall; above ils lowermost shoulder, an outer ball race wltlun the shell above its shoulder, and a series oi halls between said races; of a spreader consistir of a sleeve engaging the threads of tho shall below the inner race, a body in rho shape of trun- Gated cone carried by the upper edge of uaid sleeve and projecting outward, and a skirt; depending from the larger end of lln; body into the channel Within the shell; an up right hand secured within the horn of said shell and constituting the inner wall of said cham'lcl, and a, closure engaging the threads in the mouth oi? Said. sholl {incl closely surrounding the shaft below its an permost shoulder and the shoulder next thcrelo and above said ball hearing.

In testimony where f l hm e hereunto set my hand in prescnce of two suhscnbing WilIlQSSOS.

HUBERT ANG ll llllll N131, J'n.

Witnesses Jzso. P. MoxaorL-m, il F. SCIDunnnn,

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